JPS6473600A - Semiconductor memory device - Google Patents
Semiconductor memory deviceInfo
- Publication number
- JPS6473600A JPS6473600A JP62229535A JP22953587A JPS6473600A JP S6473600 A JPS6473600 A JP S6473600A JP 62229535 A JP62229535 A JP 62229535A JP 22953587 A JP22953587 A JP 22953587A JP S6473600 A JPS6473600 A JP S6473600A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- writing
- reading
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Static Random-Access Memory (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
PURPOSE:To increase the simultaneously measurable items by an IC tester by being equipped with test circuit to contain an switching circuit to selectively switch the output of a reading circuit and the input of a writing circuit to one external terminal. CONSTITUTION:The reading circuit having the coincidence detecting function of all the bits of a reading signal composed of plural bits and a writing circuit WA to receive a signal of one bit and to form a writing signal of the same plural bits are provided and the test circuit to selectively switch the output of the reading circuit and the input of the writing circuit WA to one of external terminals D0-D7 by switching circuits S0-S7 is built into a RAM. Consequently, a test in units of the plural bits can be attained by one signal from the outside of the RAM. Thus, the simultaneously measurable items by the IC tester can be increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62229535A JPS6473600A (en) | 1987-09-16 | 1987-09-16 | Semiconductor memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62229535A JPS6473600A (en) | 1987-09-16 | 1987-09-16 | Semiconductor memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473600A true JPS6473600A (en) | 1989-03-17 |
Family
ID=16893692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62229535A Pending JPS6473600A (en) | 1987-09-16 | 1987-09-16 | Semiconductor memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473600A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0337900A (en) * | 1989-07-04 | 1991-02-19 | Fujitsu Ltd | Semiconductor memory device |
JP2005276426A (en) * | 2004-03-23 | 2005-10-06 | Samsung Electronics Co Ltd | Memory module |
-
1987
- 1987-09-16 JP JP62229535A patent/JPS6473600A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0337900A (en) * | 1989-07-04 | 1991-02-19 | Fujitsu Ltd | Semiconductor memory device |
JP2005276426A (en) * | 2004-03-23 | 2005-10-06 | Samsung Electronics Co Ltd | Memory module |
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